Stocks shake in twitchy trading as bonds show more stress following tariff escalations

NEW YORK (AP) — The U.S. stock market is shaking in another twitchy day of trading after most other markets tumbled Wednesday as President Donald Trump’s trade war keeps escalating.

The S&P 500 was down 0.7% in midday trading after quivering at the start of trading. The index at the center of many 401(k) accounts swung from an initial loss of 0.5% to a gain of 1.4% and back down, all in less than an hour after trading opened.

The Dow Jones Industrial Average was down 263 points...